JP3399338B2 - Bulk feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] The present invention relates to an electronic component mounting apparatus.
Related to bulk feeders that supply chips to
You. [0002] 2. Description of the Related Art Electronic components (hereinafter referred to as "chips")
The chip is supplied to the electronic component mounting device mounted on the board.
Parts feeder is provided. Parts feeder
As tape feeder, tube feeder, tray
Feeders and bulk feeders are used. this
Of which, bulk feeders are advantageous for large-scale supply of small chips
Therefore, in recent years, it has been increasingly used
I have. [0003] A bulk feeder has a small chip in a case.
Are stored randomly. And remove the chips from the case
Eject them one by one into the tunnel and transfer them to the electronic component mounting equipment.
To the pick-up position of chips
Has become. To the pickup position at the tip of the tunnel
The chips transported by the
It is picked up by suction and mounted on a substrate. [0004] The transfer head has a nozzle.
Pick up chips by moving up and down
However, due to the impact when the nozzle lands on the top of the chip
Chips are easily damaged. And of the damaged chip
Debris is scattered in the tunnel and gradually damages the tunnel
And adhere to the inner surface of the tunnel. Like this
Chip is broken and chip fragments are found on the inside of the tunnel.
If it does, the transfer head will pick up the chip
It happens frequently. Conventionally, the pick-up of the chip
Replace the entire tunnel when mistakes occur frequently
Or the bulk feeder itself is discarded and replaced.
Was. However, in such a conventional method, the maintenance
It was too costly. Also, chips are packed in the tunnel of the tunnel.
Easy. If chips are stuck in the tunnel,
Open the tip and take out the chip or tunnel
It is necessary to perform maintenance such as cleaning inside
However, the conventional bulk feeder has a complicated tunnel structure.
In addition, because it was firmly assembled,
It was difficult to perform maintenance. [0007] Accordingly, the present invention is directed to chip pick-up.
Easy maintenance at low cost at the tunnel position
Purpose to provide bulk feeders that can be done
And Also, it is easy to maintain the tunnel.
The purpose is to provide a bulk feeder that can
You. [0008] SUMMARY OF THE INVENTION The present invention provides a base and a base.
On the horizontal tunnel at the top of the
With the case provided, and housed inside the case
Chips are sent out one by one to the tunnel,
So that it can be transported to the tip pickup position.
Bulk feeder with a tip at the tip of the tunnel.
The pickup position of the pump is formed separately as a sub-tunnel
AndIn this sub tunnel,
Sub-tunnels that are linearly continuous are formed in grooves,This
The sub-tunnel part can be exchangedAnd this pickup
Shutter to open and close the sub tunnel at the
Was. In the above configuration, when the bulk feeder is operated for a long time,
While it is in use, it is located at the chip pickup position.
The sub-tunnel part is gradually damaged by chip debris,
Debris also adheres. The sub-tunnel was replaced accordingly
Eliminates frequent chip pickup mistakes
it can. [0010] [0011] [0012] Embodiments of the present invention will be described below with reference to the drawings.
This will be described with reference to FIG. FIG. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a perspective view of a luk feeder, and Fig. 2 is the tip of the bulk feeder.
3 is an exploded perspective view of the tip of the bulk feeder.
FIG. 4 is a sectional view of the tip of the bulk feeder.
You. In FIG. 1, reference numeral 1 denotes a long plate-like base;
A bar-shaped first tunnel portion 2 is horizontally mounted on the upper part thereof.
ing. A first cover plate is provided on the upper surface of the first tunnel portion 2.
3 and the second cover plate 4 are detachably mounted. Ma
A shutter 5 is mounted on the upper surface of the tip of the first tunnel portion 2.
Is being worn. The shutter 5 is at the tip of the first tunnel 2
Open and close the chip pickup position. A case 6 is provided above the rear part of the base 1.
ing. A large number of chips are randomly injected inside Case 6.
Has been entered. The bottom of the case 6 has the second tunnel 7
It is connected to the first tunnel section 2 via the first tunnel section 2. Case 6
Chips fall into the second tunnel part 7 one by one,
Move to the first tunnel 2 and go beyond the first tunnel 2
It is sent to the pickup position at the end. A pneumatic unit 8 is provided behind the base 1.
Have been. The pneumatic unit 8 is connected by a pipe (not shown).
It is connected to the tip of the first tunnel section 2 and
The inside of a tunnel (to be described later) of the tunnel section 2 is evacuated. This
The chip is picked up in the tunnel by the vacuum suction pressure of
Conveyed toward the loop position. 9 is the rear frame, 10 is
The handle attached to the rear frame 9, 11 is the rear frame
9, a holder for the chip storage case mounted on the back of 12,
Is a toggle portion provided at the rear of the base 1. Lever 1
When the swing operation is performed on the hook 3, the hook 14 is
Swings back and forth. The hook 14 is mounted on a moving table.
Fix the bulk feeder to a table (not shown)
Fixing means. Next, with reference to FIGS.
The structure of the tip of the damper will be described. Above the first tunnel 2
On the surface is an elongated tunnel 20 for transporting chips.
It is formed in a groove shape. On the upper surface of the first tunnel 2
First cover plate 3 and second cover plate for covering tunnel 20
4, the tunnel 20 is sealed. A notch 21 is formed at a side end of the first cover plate 3.
Are formed at a plurality of locations. In addition, the first tunnel 2
A screw 22 is screwed on the upper surface. Therefore the notch
21 is screwed into the screw 22 and the screw 22 is screwed in.
The first cover plate 3 is fixed to the upper surface of the first tunnel portion 2.
You. When the screw 22 is loosened, the first cover plate 3
Can be removed from the tunnel section 2. Such a notch 2
1 and the fixing means by the screw 22, the first cover plate
3 is easily attached to and detached from the first tunnel section 2, and a tunnel 20 is provided.
Easy maintenance such as clogging of chips inside and cleaning of garbage
Can be done. Note that the second cover plate 4 is also the first cover.
On the first tunnel part 2 by the same fixing means as the bar plate 3
It is detachably attached to the surface. In FIG. 3, the tip of the first tunnel portion 2 is shown.
The part is partially cut away, and a small-sized part
The sub-tunnel part 24 is mounted exchangeably. 25 is off
Next to the sub-tunnel 24 protruding from both sides of the removing part 23
It is a rib for positioning in the direction. Above sub-tunnel 24
On the surface, a sub-tunnel that continues linearly to the tunnel 20
26 is formed in a thin groove shape. Referring to FIG.
The upper surface on the left side of the boot tunnel 24 is held down by the second cover plate 4.
Can be The upper right side of the sub-tunnel 24 is a shutter.
Covered with 5. The lever is pressed by the pressing means of the electronic component mounting device.
-15 (FIG. 1) is pressed, the shutter 5
Sliding in the front-rear direction (arrow a), the sub-tunnel 24
Momentarily open the upper surface of the. In that state, mount electronic components
The nozzle 31 (FIG. 2) of the transfer head 30 of the apparatus is
Chips transported to the tunnel 26 of the channel section 24
Is picked up by vacuum suction. Thus subton
The tunnel portion 24 is provided at the pickup position of the chip.
You. 27 is a tube communicating with the tunnel 26,
It is connected to a pneumatic unit 8. This bulk feeder has the above configuration.
Next, the operation will be described. The chip in case 6
Drop to the second tunnel 7 and move to the first tunnel 2
I do. Tunnel 20 is used for vacuum suction pressure of pneumatic unit 8
Vacuum suction is applied, and the chip is
Are transported in a line in the tunnel 20 to the pickup position
Sent. At the pickup position, the shutter 5 opens and closes.
To the tunnel 26 of the sub-tunnel 24
The transferred chip is instantaneously exposed, and the transfer head 30
It is picked up by vacuum suction on the nozzle 31 and mounted on the substrate
Is done. When the nozzle 31 picks up the chip,
Chip is easily damaged by impact applied to the chip
No. Damaged chip debris damages the inner surface of tunnel 26
Easy to attach and adhere to the inner surface. Like this
Damage to flannel 26 often leads to chip pick-up mistakes
Become so. Therefore, the replacement of the sub-tunnel part 24
Do. This exchange is performed by loosening the screw 22 and removing the second cover plate 4.
Easily from the first tunnel section 2
It can be carried out. [0022] As described above, according to the present invention, the
The inside surface of the tunnel in the tunnel is damaged by chip debris
Chips or chip fragments adhere to the inner surface of the tunnel
May cause chip pick-up errors.
If the sub-tunnel part is replaced,
Pickup mistakes can be prevented
You. In addition, troubles such as tip clogging in the tunnel
When fresh, the cover plate can be easily removed from the tunnel section.
Easy maintenance of the tunnel by removing it
it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a bulk feeder according to an embodiment of the present invention. FIG. 2 is a perspective view of a tip end of a bulk feeder according to an embodiment of the present invention. FIG. 4 is an exploded perspective view of a tip of a bulk feeder according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of a tip of a bulk feeder according to one embodiment of the present invention. First cover plate 4 Second cover plate 5 Shutter 6 Case 20, 26 Tunnel 21 Notch 22 Screw 24 Sub-tunnel

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H05K 13/02

Claims (1)

(57) [Claims 1] A base, a horizontal tunnel portion provided on the upper portion of the base, and a case provided on the upper portion of the base,
A bulk feeder configured to send out chips stored in a case one by one to a tunnel portion and to transport the chips to a tip pickup position at a tip portion of the tunnel portion,
The pickup position of the tip at the tip of the tunnel section is separately formed as a sub-tunnel section.
Sub-tunnels that are continuous in a straight line in the tunnel
The sub-tunnel is formed in the shape of a groove, the sub-tunnel can be exchanged , and the sub-tunnel at the pickup position is opened.
A bulk feeder comprising a shutter for closing .